| Brand | Cost (installed) | Capacity | Notes |
|---|---|---|---|
| Tesla Powerwall | $11,500 | 13.5 kWh | Most popular, sleek design |
| Enphase IQ | $10,000 | 5 kWh (modular) | Stackable, works with any inverter |
| LG RESU | $9,500 | 16 kWh | High capacity, compact |
| Generac PWRcell | $12,000 | 18 kWh | Highest capacity |
| Franklin WH | $10,500 | 13.6 kWh | Newer, good reviews |
Compare installers and pricing Online reviews and personal referrals from friends or family remain the most reliable way to find quality providers at fair prices. Costs vary 20-40% between regions, so local estimates are more accurate than national averages for budgeting purposes.
The cost of solar battery depends on several interconnected factors that can shift the final number significantly in either direction. Material quality is typically the largest variable — the gap between standard and premium options can double or triple the total project cost. Labor rates vary by region, with major metros running 30–50% higher than rural areas for identical work.
Project scope is the other major cost driver. What seems like a simple project can escalate quickly once walls are opened or existing conditions are revealed. This is why experienced contractors build contingency into their estimates, and why homeowners should too. The most common budget-breaker is changing the scope mid-project, which resets timelines and pricing.